Biollante's figure captures the eerie fusion of plant life and kaiju DNA. The torso is sculpted with a rugged, bark-like texture in deep green, accented by lighter veins that hint at the rose-plant origin inside. Vines spread from the shoulders and waist, curling around the legs and reaching upward, ending in serrated tendrils that suggest aggressive movement. The head resembles a blooming rose or flower crest, with petal-like structures around a fearsome face, and glossy accents to imitate sap and resin. The figure is designed to be highly poseable, featuring multiple articulation points at the neck, shoulders, elbows, wrists, hips, knees, and ankles, allowing dynamic battle stances. The color palette blends greens and earth tones with subtle pinkish highlights on the floral elements, reproducing the otherworldly appearance of Biollante in the Gojira vs Biollante storyline. Base and stand support further stabilize the creature in dramatic poses for display.

In the story Gojira vs. Biollante, Biollante emerges as a hybrid monster born of human ambition and alien DNA, a creature born from genetic experiments intended to fuse a living plant with godlike power. Biollante is awakened by a surge of life energy, displaying intelligence and a primal will to protect nature and seek vengeance against those who would misuse science. She towers over the battlefield, vines writhing as weapons, spines along her back, and a rose-like head that can unleash devastating energy. The clash with Godzilla becomes a clash of two forces—the relentless predator and the sentient garden-born giant—each capable of warping the city into a devastated landscape. Throughout the confrontation, Biollante's vulnerability and tragic origins are revealed, making her more than a mere monster; she is a symbol of the consequences of unchecked experimentation and the strange, haunting beauty of a corrupted bloom.